The H-World CRPG engine is a tile-based, turn-based, Lua scriptable engine that supports a nice graphical, isometric display. It can support a single personal character as well as parties. There is AI support for both combat and non-combat actions. H-World is available for Windows and Linux.
Project Homepage http://h-world.simugraph.com
Project feedback forum http://www.simugraph.com/forum
Announcements, downloads http://www.simugraph.com/forum/viewforum.php?id=11